Finding the Fourth Proportional to 86,661.18, 119,578.95 and 48,934.62
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Solution
The fourth proportional to 86,661.18, 119,578.95 and 48,934.62 is: 67,522.16
Step by Step Solution
- Step 1: Write the proportion equation
86,661.18 : 119,578.95 = 48,934.62 : x - Step 2: Convert to fraction form
86,661.18/119,578.95 = 48,934.62/x - Step 3: Cross multiply
86,661.18x = 119,578.95 × 48,934.62 - Step 4: Simplify right side
86,661.18x = 5,851,550,478.25 - Step 5: Solve for x
x = 5,851,550,478.25/86,661.18 - Step 6: Final answer
x = 67,522.16
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.